Hey Robin66, how have you found the temps so far with the H115i, I've got a 9900K arriving tomorrow and I'm a little concerned that I'll be using an H100i Pro in a mATX case (Corsair 240). I've seen reviews online where they reckon you need to have a 360mm AIO at the very least. If that's the case I'll need to rethink my motherboard/case/AIO.
My temps are good at an average of about 60 while gaming. But I did change the fans from the standard 1200 rpm to 2000 rpm. I have the fans on balanced in the Corsair link software. Which when needed they ramp up to about 1600 rpm.